CN103194684A - Wear-resistant steel plate and manufacture method thereof - Google Patents
Wear-resistant steel plate and manufacture method thereof Download PDFInfo
- Publication number
- CN103194684A CN103194684A CN2013101051538A CN201310105153A CN103194684A CN 103194684 A CN103194684 A CN 103194684A CN 2013101051538 A CN2013101051538 A CN 2013101051538A CN 201310105153 A CN201310105153 A CN 201310105153A CN 103194684 A CN103194684 A CN 103194684A
- Authority
- CN
- China
- Prior art keywords
- wear
- steel plate
- resisting steel
- rolling
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
The invention provides a wear-resistant steel plate and a manufacture method of the wear-resistant steel plate. The wear-resistant steel plate comprises the following chemical components in percentage by weight: 0.15 to 0.35% of C, 0.10 to 0.60% of Si, 0.30 to 1.60% of Mn, not greater than 0.015% of P, not greater than 0.010% of S, 0.10 to 1.00% of Ti, 0.20 to 1.50% of Cr, not greater than 0.80% of Mo, not greater than 1.50% of Ni, not greater than 0.10% of V, 0.0005 to 0.0040% of B, 0.010 to 0.080% of Al, 0.0010 to 0.0080% of Ca, not greater than 0.0080% of N, not greater than 0.0080% of O, not greater than 0.0004% of H, and the balance of Fe and inevitable impurities. The wear-resistant steel plate has the tensile strength more than 1200MPa, elongation rate more than 13%, Brinell hardness more than 400HB, and V-shaped longitudinal Charpy impact power more than 50J at -40 DEG C. The wear-resistant steel plate has high strength and hardness, excellent wear resistance and outstanding mechanical processing performance, and is suitable for being applied to components, which are easily worn, of various mechanical means.
Description
Technical field
The present invention relates to wear resisting steel, particularly relate to a kind of wear-resisting steel plate and manufacture method thereof; Its tensile strength is greater than 1200MPa, and unit elongation is greater than 13%, and Brinell hardness is greater than 400HB ,-40 ℃ of summers than V-type impact of collision merit greater than 50J; Microstructure is martensite and residual austenite and tiny equally distributed hard TiC, wherein residual austenite volume fraction≤5% mutually.
Background technology
It is abominable especially that wear-resisting steel plate is widely used in working conditions, requires high strength, on the engineering goods such as the engineering of high-wear resistance, mining, agricultural, manufacture of cement, harbour, electric power and metallurgy.As dozer, shovel loader, excavator, wagon tremie and grab bucket, stacker-reclaimer, defeated material warp architecture etc.
Generally select for use Hadfield Steel to produce wear parts traditionally.The strain inducing martensitic transformation can take place in Hadfield Steel under big impact loading, improve its wear resistance.Hadfield Steel is subject to alloying element content height, mechanical workout, welding property is poor, initial hardness is low, and is not suitable for widespread use.
In recent decades, the exploitation of wear resisting steel and application development are very fast, generally add an amount of carbon and alloying element, produce by modes such as casting, rolling and thermal treatments.Can be divided into austenite abrasion-proof steel, Bainite wear-resisting steel and martensite wear-resistant steel from tissue signature's angle wear resisting steel, widespread usage is the martensite wear-resistant steel at present.Such wear resisting steel as chromium, molybdenum, nickel, vanadium, tungsten, cobalt, boron etc., takes full advantage of the mechanical property of schedule of reinforcement raising wear resisting steels such as phase transformation strengthening mainly by increasing carbon content and adding an amount of alloying element.Yet, because the martensite wear-resistant steel is strong, hardness is too high, have shortcomings such as machining property difference such as cutting, bending; If improve machining property, then strong hardness reduces, and will reduce the wear resistance of steel plate.Therefore, exploitation wear resistance and machining property all very excellent wear resisting steel be the inexorable trend of development in the future.
Chinese patent CN101250673 discloses a kind of low-carbon and low-alloy wear resisting steel, adopts the production of quenching+tempering heat treatment process, and strong hardness is very high, but machining property is slightly poor.Chinese patent CN102560272A discloses a kind of middle carbon and low-alloy wear resisting steel, adopts the TMCP explained hereafter, and strong hardness is very high, and machining property is inevitable relatively poor, and is also inapplicable for the equipment that mechanical workout is had relatively high expectations.
Summary of the invention
The object of the present invention is to provide a kind of wear-resisting steel plate and manufacture method thereof, its tensile strength is greater than 1200MPa, and unit elongation is greater than 13%, and Brinell hardness is greater than 400HB ,-40 ℃ of summers than V-type impact of collision merit greater than 50J; Microstructure is martensite and residual austenite and tiny equally distributed hard TiC mutually, residual austenite volume fraction≤5% wherein, and this wear-resisting steel plate has excellent low-temperature impact toughness and favorable mechanical processing characteristics, be applicable to the easy-abrasion part in the various mechanical means, very be of value to the widespread use on the engineering.
For achieving the above object, the present invention adopts following technical scheme:
A kind of wear-resisting steel plate, the weight percent of its chemical ingredients is: C:0.15-0.35%, Si:0.10-0.60%, Mn:0.30-1.60%, P≤0.015%, S≤0.010%, Ti:0.10-1.00%, Cr:0.20-1.50%, Mo≤0.80%, Ni≤1.50%, V≤0.10%, B:0.0005-0.0040%, Al:0.010-0.080%, Ca:0.0010-0.0080%, N≤0.0080%, O≤0.0080%, H≤0.0004%, all the other are Fe and unavoidable impurities; Its tensile strength is greater than 1200MPa, and unit elongation is greater than 13%, and Brinell hardness is greater than 400HB ,-40 ℃ of summers than V-type impact of collision merit greater than 50J; Its microstructure is martensite and residual austenite and tiny equally distributed hard TiC, wherein residual austenite volume fraction≤5% mutually.
The microstructure of wear-resisting steel plate of the present invention is martensite and residual austenite and tiny equally distributed hard TiC, wherein residual austenite volume fraction≤5% mutually.
The chemical ingredients effect of wear-resisting steel plate involved in the present invention is as follows:
Carbon: carbon is the most basic in the wear resisting steel, most important element, can improve intensity and the hardness of steel, and then improves the wear resistance of steel, but its toughness and welding property to steel is unfavorable, therefore, the carbon content that should rationally control in the wear resisting steel is 0.15-0.35wt.%, is preferably 0.17-0.35wt.%.
Silicon: silicon is solid-solubilized in hardness and the intensity that improves them in ferrite and the austenite, yet the too high meeting of silicone content causes the toughness of steel sharply to descend, therefore content is difficult for too much, and control silicon is 0.10-0.60wt.% in the wear resisting steel of the present invention, is preferably 0.15-0.60wt.%.
Manganese: manganese increases the hardening capacity of steel strongly, reduces the critical cooling velocity of wear resisting steel transition temperature and steel.But when manganese content is higher, the tendency of the grain coarsening of making is arranged, and increase the crisp susceptibility of tempering of steel, and cause occurring in the strand segregation and crackle easily, reduce the performance of steel plate, control manganese content is 0.30-1.60wt.% in the wear resisting steel of the present invention, is preferably 0.30-1.50wt.%.
Titanium: titanium is one of strong carbide forming element, forms trickle TiC particle with carbon.The TiC particle is tiny, is distributed in crystal boundary, reaches the effect of crystal grain thinning.In addition, a large amount of, equally distributed TiC particle extremely is of value to the wear resistance that improves steel, and the control titanium content is 0.10-1.0wt.% in the wear resisting steel of the present invention, is preferably 0.20-1.00wt.%.
Chromium: chromium can reduce critical cooling velocity, improve the hardening capacity of steel.Chromium can form multiple carbide in steel, improve intensity and hardness.Control chromium content is 0.20-1.50wt.% in the wear resisting steel of the present invention, is preferably 0.20-1.20wt.%.
Molybdenum: molybdenum can crystal grain thinning, improves intensity and toughness.Molybdenum in steel, be present in sosoloid mutually with carbide mutually in, therefore, contain the effect that molybdenum steel has solution strengthening and carbide dispersion-strengthened simultaneously.Control molybdenum content is preferably≤0.50wt.% in the scope of≤0.80wt.% in the wear resisting steel of the present invention.
Nickel: nickel can reduce critical cooling velocity, improve the hardening capacity of steel, and the effect with reduction Cold Brittleness Transition Temperature, but too high levels easily causes surface of steel plate oxide skin to be difficult to come off, and cost significantly increases, control nickel content is preferably≤1.00wt.% in≤1.50wt.% scope in the wear resisting steel of the present invention.
Vanadium: the adding of vanadium mainly is for crystal grain thinning, make steel billet the heating phase austenite crystal be unlikely to grow too thick, can make the crystal grain of steel obtain further refinement in the operation of rolling, improve intensity and the toughness of steel, the control vanadium is≤0.10wt.% to be preferably≤0.080wt.% in the wear resisting steel of the present invention.
Boron: boron increases the hardening capacity of steel but too high levels will cause hot-short phenomenon, influence welding property and the hot workability of steel, therefore need strict control boron content, control boron content is 0.0005-0.0040wt.% in the wear resisting steel of the present invention, is preferably 0.0005-0.0025wt.%.
Aluminium: but the aluminium crystal grain thinning, fixedly the nitrogen in the steel and oxygen alleviate steel to the susceptibility of breach, reduce or eliminate the aging phenomenon of steel, and improve the toughness of steel, and the control of aluminium content is preferably 0.020-0.080wt.% at 0.010-0.080wt.% in the wear resisting steel of the present invention.
Calcium: add in the steel an amount of calcium the strip sulfide inclusion in the steel can be changed into spherical CaS or (Ca, Mn) S is mingled with, the formed oxide compound of calcium and sulfide inclusion density are little, are easy to come-up and get rid of.Calcium also significantly reduces sulphur poly-partially at crystal boundary, and these all are of value to the quality that improves cast steel, and then the performance of raising steel.The control calcium contents is 0.0010-0.0080wt.% in the wear resisting steel of the present invention, is preferably 0.0010-0.0050wt.%.
Phosphorus and sulphur: in wear resisting steel, sulphur and phosphorus are harmful element, and their content is wanted strict control, controls phosphorus content≤0.015wt.% in the steel grade involved in the present invention, is preferably≤0.012wt.%; Control sulphur content≤0.010wt.% is preferably≤0.005wt.%.
Nitrogen, oxygen, hydrogen: too much oxygen, nitrogen and hydrogen is very disadvantageous to weldability, impelling strength and splitting resistance especially to the performance of steel in the steel, reduce quality and the work-ing life of steel plate, but controlled sternly and can significantly increase production cost, therefore, control nitrogen content≤0.0080wt.% in the steel grade involved in the present invention, be preferably≤0.0050wt.%; Control oxygen level≤0.0080wt.% is preferably≤0.0050wt.%; Control hydrogen richness≤0.0004wt.%, hydrogen richness is preferably≤0.0003wt.%.
The manufacture method of wear-resisting steel plate of the present invention is smelted by above-mentioned chemical ingredients proportioning, through casting, heating, rolling, roll the directly described wear-resisting steel plate of cooling acquisition of back; Wherein, in heating steps, slab heating temperature is 1000-1250 ℃, is incubated 1-3 hour; In rolling step, the roughing temperature is 950-1200 ℃, and final rolling temperature is 790-880 ℃; In cooling step, adopt water-cooled to be cooled to below 400 ℃ again air cooling to room temperature, wherein water-cooled speed of cooling 〉=20 ℃/s; The microstructure of the wear-resisting steel plate that obtains is mainly martensite and residual austenite and tiny equally distributed hard TiC mutually, residual austenite volume fraction≤5% wherein, tensile strength is greater than 1200MPa, unit elongation is greater than 13%, Brinell hardness is greater than 400HB ,-40 ℃ of summers than V-type impact of collision merit greater than 50J.
The described back of rolling directly also comprises tempering step after the cooling, and in tempering step, Heating temperature is 100-400 ℃, insulation 30-120min.
Preferably, in described heat-processed, Heating temperature is 1050-1250 ℃; Preferred Heating temperature is 1060-1250 ℃; For improving the solute effect of Ti in steel, most preferred Heating temperature is 1080-1250 ℃.
Preferably, in rolling step, the roughing temperature is 980-1200 ℃, and the rolling draft of rough rolling step is greater than 20%, and final rolling temperature is 790-870 ℃, and finish rolling stage rolling draft is greater than 40%; Preferred, the roughing temperature is 990-1200 ℃, and the rolling draft of rough rolling step is greater than 25%, and final rolling temperature is 795-870 ℃, and finish rolling stage rolling draft is greater than 45%; Most preferred, the roughing temperature is 990-1180 ℃, and the rolling draft of rough rolling step is greater than 28%, and final rolling temperature is 795-865 ℃, and finish rolling stage rolling draft is greater than 50%.
Preferably, in cooling step, stopping cold temperature is below 380 ℃, water-cooled speed of cooling 〉=23 ℃/s; Preferred, stopping cold temperature is below 350 ℃, water-cooled speed of cooling 〉=27 ℃/s; Most preferred, stopping cold temperature is below 330 ℃, water-cooled speed of cooling 〉=30 ℃/s.
Preferably, in tempering step, Heating temperature is 100-380 ℃, insulation 30-100min; Preferred, Heating temperature is 100-350 ℃, insulation 30-100min; Most preferred, Heating temperature is 150-350 ℃, insulation 30-100min.
Because wear-resisting steel plate science of the present invention has designed the suitable species of carbon and other alloying elements and the appropriate level of selecting alloying element, and by above-mentioned heating, rolling and roll the back directly process for cooling etc. refinement, turn usefulness into, acquisition has the wear-resisting steel plate of martensitic matrix tissue, and there is tiny, equally distributed hard phase TiC in a large number in the tissue, mechanical property (as hardness) and wear resisting property that it can significantly improve wear-resisting steel plate especially have the favorable mechanical processing characteristics.
Wear-resisting steel plate of the present invention compared with prior art has following characteristics:
1, on chemical ingredients, the alloying constituent of wear-resisting steel plate of the present invention is based on low-carbon and low-alloy, take full advantage of refinement, the reinforcement characteristics of element ti and carbide thereof, when reducing carbon and alloying elements cr, Mo and Ni equal size, guarantee that wear-resisting steel plate has the machining property of good abrasion resistance and excellence etc.
2, on production technique, wear-resisting steel plate of the present invention adopts the TMCP explained hereafter, improve structure refinement, strengthening effect by control of process parameters such as opening in the TMCP technology, finishing temperature, rolling reduction and speed of cooling, and then reduce carbon and alloying element content, obtain all very excellent steel plates such as mechanical property and welding property.In addition, it is short that this technology also has Production Flow Chart, efficient height, save energy, characteristics such as cost is low.
3, on product performance, wear-resisting steel plate of the present invention has when strong high rigidity is not very high, has excellent abrasive energy and favorable mechanical processing characteristics, and this mainly is the result that a large amount of evenly TiC hard exist mutually.
4, on microstructure, wear-resisting steel plate of the present invention, take full advantage of alloying element and cooling controlling and rolling controlling process and combine and obtain thin martensitic stucture and the tiny equally distributed hard phase TiC of residual austenite (wherein residual austenite volume fraction≤5%), be of value to the wear resistance that improves wear-resisting steel plate.
In a word, wear-resisting steel plate of the present invention is rationally controlled carbon and alloying element content, under not being very high condition, strong hardness still do not have excellent wear resisting steel performance and machining property, be applicable to easy-abrasion part in the various mechanical means, the wear-resisting steel plate of this type is the inexorable trend of social economy and Iron And Steel Industry development.
Description of drawings
Fig. 1 is the microstructure picture of the wear-resisting steel plate of the embodiment of the invention 5;
Fig. 2 is the TiC shape appearance figure in the embodiment of the invention 5 wear-resisting steel plate matrixes;
Fig. 3 is the TiC energy spectrum analysis figure in the embodiment of the invention 5 wear-resisting steel plate matrixes;
Fig. 4 is another section TiC energy spectrum analysis figure in the embodiment of the invention 5 wear-resisting steel plate matrixes.
Embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is described in further detail, should be clear and definite, embodiment only is that specific description of embodiments of the present invention, protection scope of the present invention is not constituted any restriction.
Embodiment
The steel plate of the wear-resisting steel plate of following examples 1-10 and Comparative Examples 1, its following chemical components in percentage by weight is as shown in table 1; The manufacture method of the steel plate of the wear-resisting steel plate of embodiment 1-10 and Comparative Examples 1 (Comparative Examples 1 is the embodiment among the Chinese patent CN1865481A) is: corresponding raw materials for metallurgy is smelted, casting → heating then → rolling → roll directly cooling → tempering of back (can not tempering), control the steel plate chemical element quality per distribution ratio in each embodiment and the Comparative Examples 1, wherein, in heating steps, slab heating temperature is 1000-1250 ℃, is incubated 1-3 hour; In rolling step, the roughing temperature is 950-1200 ℃, and final rolling temperature is 790-880 ℃; In cooling step, adopt water-cooled to be cooled to below 400 ℃ again air cooling to room temperature, wherein water-cooled speed of cooling 〉=20 ℃/s; In tempering step, Heating temperature is 100-400 ℃, insulation 30-120min; The thickness of the concrete processing parameter of embodiment 1-10 and the wear-resisting steel plate of acquisition is as shown in table 2.
Table 1 unit: weight percent
| ? | C | Si | Mn | P | S | Ti | Cr | Mo | Ni | V | Al | B | Ca | N | | H |
| Embodiment | ||||||||||||||||
| 1 | 0.15 | 0.60 | 1.50 | 0.009 | 0.003 | 0.56 | 0.50 | 0.27 | 0.52 | 0.080 | 0.038 | 0.0012 | 0.0030 | 0.0030 | 0.0050 | 0.0002 |
| |
0.17 | 0.51 | 1.23 | 0.009 | 0.002 | 0.20 | 0.88 | / | / | / | 0.056 | 0.0018 | 0.0030 | 0.0040 | 0.0030 | 0.0002 |
| Embodiment 3 | 0.19 | 0.38 | 1.16 | 0.010 | 0.010 | 0.46 | 0.35 | 0.15 | / | 0.10 | 0.068 | 0.0015 | 0.0020 | 0.0030 | 0.0030 | 0.0003 |
| |
0.20 | 0.27 | 1.30 | 0.009 | 0.005 | 0.55 | 0.55 | / | 1.00 | / | 0.010 | 0.0020 | 0.0080 | 0.0050 | 0.0040 | 0.0004 |
| Embodiment 5 | 0.23 | 0.33 | 0.98 | 0.008 | 0.003 | 0.10 | 1.0 | / | / | / | 0.049 | 0.0005 | 0.0050 | 0.0030 | 0.0030 | 0.0002 |
| |
0.25 | 0.15 | 0.73 | 0.008 | 0.004 | 0.85 | 0.65 | / | / | / | 0.066 | 0.0018 | 0.0025 | 0.0080 | 0.0080 | 0.0003 |
| Embodiment 7 | 0.28 | 0.22 | 0.81 | 0.010 | 0.003 | 0.68 | 0.33 | 0.60 | / | 0.038 | 0.080 | 0.0040 | 0.0030 | 0.0030 | 0.0030 | 0.0003 |
| |
0.31 | 0.21 | 0.65 | 0.007 | 0.002 | 1.00 | 0.39 | / | / | / | 0.038 | 0.0018 | 0.0035 | 0.0040 | 0.0040 | 0.0003 |
| Embodiment 9 | 0.33 | 0.28 | 0.55 | 0.007 | 0.002 | 0.59 | 0.46 | / | 0.38 | / | 0.020 | 0.0015 | 0.0020 | 0.0030 | 0.0030 | 0.0002 |
| Embodiment 10 | 0.35 | 0.10 | 0.40 | 0.008 | 0.002 | 0.77 | 0.55 | 0.33 | 0.44 | / | 0.055 | 0.0016 | 0.0030 | 0.0030 | 0.0030 | 0.0002 |
| Comparative Examples 1 | 0.30 | 0.8 | 2.05 | ＜0.04 | ＜0.03 | - | 0.6 | 0.6 | ? | - | - | - | - | - | - | - |
Table 2
1, mechanical property test
Novel wear resistant steel plate to embodiment of the invention 1-10 carries out Mechanics Performance Testing, and its result is as shown in table 3.
Table 3
As can be seen from Table 3, the wear-resisting steel plate that embodiment of the invention 1-10 obtains, its tensile strength: 1200-1500MPa, unit elongation: 13%-15%, Brinell hardness: 400-500HB ,-40 ℃ of summers have strengthened the suitability of wear resisting steel than V-type impact of collision merit: 50-100J, more than explanation wear-resisting steel plate of the present invention not only has characteristics such as high strength, high rigidity, and has excellent low-temperature impact toughness.The mechanical property of wear-resisting steel plate involved in the present invention obviously is better than the steel plate of Comparative Examples 1.
2, wear resisting property test:
Cut resistance test is carried out at the ML-100 grain-abrasion testing machine.During the intercepting sample, make the axis normal of sample in surface of steel plate, the wearing surface of sample is the rolling surface of steel plate.Sample is processed into step-like right cylinder on request, and part of detecting is of a size of Φ 4mm, and the jig retained part is of a size of Φ 5mm.Use the alcohol wash sample before the test, dry up with blower then, weigh at the balance of ten thousand/precision, record sample weight as original weight, then be installed on the spring chuck.Be 80 purpose sand paper with granularity, under the effect of 84N load, test.Test back is because the wearing and tearing between sample and sand paper, and sample is at the sand paper spiral-line that draws, and stops the length that radius calculates spiral-line according to the initial sum of spiral-line, and calculation formula is as follows:
In the following formula, r1 is the start radius of spiral-line, and r2 is the termination radius of spiral-line, and a is the amount of feed of spiral-line.Each experiment is weighed and is averaged for three times, calculates weightlessness then, represents the wear rate (mg/M) of sample with every meter weightlessness.
High-performance abrasion-proof steel plate to embodiments of the invention 1-10 carries out cut resistance test respectively, and the wearing test result of the steel grade of the wear-resisting steel plate of embodiment 1-10 and Comparative Examples 2 (Comparative Examples 2 is that a kind of hardness is the steel plate of 450HB) is as shown in table 4.
Table 4
| Steel grade | Test temperature | The wearing test condition | Wear rate (mg/M) |
| |
Room temperature | 80 orders sand paper/84N load | 13.015 |
| |
Room temperature | 80 orders sand paper/84N load | 12.892 |
| Embodiment 3 | Room temperature | 80 orders sand paper/84N load | 12.756 |
| |
Room temperature | 80 orders sand paper/84N load | 12.631 |
| Embodiment 5 | Room temperature | 80 orders sand paper/84N load | 12.503 |
| |
Room temperature | 80 orders sand paper/84N load | 12.383 |
| Embodiment 7 | Room temperature | 80 orders sand paper/84N load | 12.262 |
| |
Room temperature | 80 orders sand paper/84N load | 12.155 |
| Embodiment 9 | Room temperature | 80 orders sand paper/84N load | 12.016 |
| |
Room temperature | 80 orders sand paper/84N load | 11.895 |
| Comparative Examples 2 | Room temperature | 80 orders sand paper/84N load | 13.585 |
As can be known from Table 4, under the abrasive conditions of room temperature, 80 orders sand paper/84N load, when the steel plate hardness of embodiment 1-8 was lower than Comparative Examples 2 steel plate hardness, its wear resisting steel performance was better than the wear resistance of Comparative Examples 2 steel plates, and this has proved absolutely that wear-resisting steel plate involved in the present invention has excellent abrasive.
3, microstructure
The wear-resisting steel plate of embodiment 5 is detected TiC pattern and the energy spectrum analysis figure that obtains in its microstructure and the matrix, as shown in Figure 1, Figure 2, Figure 3 and Figure 4.From Fig. 1-Fig. 4 as can be known: this microstructure is thin martensite and small portion of residual austenite and tiny equally distributed hard TiC mutually, especially from Fig. 3 and Fig. 4 as can be known, contain tiny equally distributed hard phase TiC in the matrix, this has guaranteed that steel plate has excellent mechanical property and wear resisting property.
Science of the present invention has designed carbon, alloying constituent and corresponding proportioning thereof, reduced cost of alloy, and adopt suitable rolling and process for cooling, make the wear-resisting steel plate that obtains have excellent mechanical property such as high strength, high rigidity and high-wearing feature, and have machining properties such as easy cutting, bending, have very strong suitability.
Claims (13)
1. wear-resisting steel plate, the weight percent of its chemical ingredients is: C:0.15-0.35%, Si:0.10-0.60%, Mn:0.30-1.60%, P≤0.015%, S≤0.010%, Ti:0.10-1.00%, Cr:0.20-1.50%, Mo≤0.80%, Ni≤1.50%, V≤0.10%, B:0.0005-0.0040%, Al:0.010-0.080%, Ca:0.0010-0.0080%, N≤0.0080%, O≤0.0080%, H≤0.0004%, all the other are Fe and unavoidable impurities; The tensile strength of wear-resisting steel plate is greater than 1200MPa, and unit elongation is greater than 13%, and Brinell hardness is greater than 400HB ,-40 ℃ of summers than V-type impact of collision merit greater than 50J; Its microstructure is mainly martensite and residual austenite and tiny equally distributed hard TiC, wherein residual austenite volume fraction≤5% mutually.
2. wear-resisting steel plate as claimed in claim 1 is characterized in that, C:0.17-0.35%; Si:0.15-0.60%; Mn:0.30-1.50%, by weight percentage.
3. wear-resisting steel plate as claimed in claim 1 is characterized in that, Ti:0.20-1.00%; Cr:0.20-1.20%, by weight percentage.
4. wear-resisting steel plate as claimed in claim 1 is characterized in that, Mo≤0.50%; Ni≤1.00%; V≤0.080%, by weight percentage.
5. wear-resisting steel plate as claimed in claim 1 is characterized in that, B:0.0005-0.0025%; Al:0.020-0.080%, by weight percentage.
6. wear-resisting steel plate as claimed in claim 1 is characterized in that, P≤0.012%; S≤0.005%, by weight percentage.
7. wear-resisting steel plate as claimed in claim 1 is characterized in that, Ca:0.0010-0.0050%, N≤0.0050%; O≤0.0050%; H≤0.0003%, by weight percentage.
8. as the manufacture method of the arbitrary described wear-resisting steel plate of claim 1-7, comprise the steps: to smelt by above-mentioned chemical ingredients proportioning, through casting, heating, rolling, roll the directly described wear-resisting steel plate of cooling acquisition of back; Wherein, in heating steps, slab heating temperature is 1000-1250 ℃, is incubated 1-3 hour; In rolling step, the roughing temperature is 950-1200 ℃, and final rolling temperature is 790-880 ℃; In cooling step, adopt water-cooled to be cooled to below 400 ℃ again air cooling to room temperature, water-cooled speed of cooling 〉=20 ℃/s; The microstructure of the wear-resisting steel plate that obtains is mainly martensite and residual austenite and tiny equally distributed hard TiC mutually, residual austenite volume fraction≤5% wherein, tensile strength is greater than 1200MPa, unit elongation is greater than 13%, Brinell hardness is greater than 400HB ,-40 ℃ of summers than V-type impact of collision merit greater than 50J.
9. the manufacture method of wear-resisting steel plate as claimed in claim 8 is characterized in that, the described back of rolling directly also comprises tempering step after the cooling, and in tempering step, Heating temperature is 100-400 ℃, insulation 30-120min.
10. the manufacture method of wear-resisting steel plate as claimed in claim 8 or 9 is characterized in that in heating steps, slab heating temperature is 1050-1250 ℃; Preferred, slab heating temperature is 1060-1250 ℃; Most preferred, slab heating temperature is 1080-1250 ℃.
11. the manufacture method of wear-resisting steel plate is characterized in that as claimed in claim 8 or 9, in rolling step, the roughing temperature is 980-1200 ℃, the rolling draft of rough rolling step is greater than 20%, and final rolling temperature is 790-870 ℃, and finish rolling stage rolling draft is greater than 40%; Preferred, in rolling step, the roughing temperature is 990-1200 ℃, and the rolling draft of rough rolling step is greater than 25%, and final rolling temperature is 795-870 ℃, and finish rolling stage rolling draft is greater than 45%; Most preferred, in rolling step, the roughing temperature is 990-1180 ℃, and the rolling draft of rough rolling step is greater than 28%, and final rolling temperature is 795-865 ℃, and finish rolling stage rolling draft is greater than 50%.
12. the manufacture method of wear-resisting steel plate is characterized in that as claimed in claim 8 or 9, in cooling step, stopping cold temperature is below 380 ℃, water-cooled speed of cooling 〉=23 ℃/s; Preferred, in cooling step, stopping cold temperature is below 350 ℃, water-cooled speed of cooling 〉=27 ℃/s; Most preferred, in cooling step, stopping cold temperature is below 330 ℃, water-cooled speed of cooling 〉=30 ℃/s.
13. the manufacture method of wear-resisting steel plate is characterized in that as claimed in claim 8 or 9, in tempering step, tempering temperature is 100-380 ℃, insulation 30-100min; Preferred, in tempering step, Heating temperature is 100-350 ℃, insulation 30-100min; Most preferred, in tempering step, Heating temperature is 150-350 ℃, insulation 30-100min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310105153.8A CN103194684B (en) | 2013-03-28 | 2013-03-28 | A kind of wear-resisting steel plate and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310105153.8A CN103194684B (en) | 2013-03-28 | 2013-03-28 | A kind of wear-resisting steel plate and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103194684A true CN103194684A (en) | 2013-07-10 |
| CN103194684B CN103194684B (en) | 2016-08-03 |
Family
ID=48717497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310105153.8A Active CN103194684B (en) | 2013-03-28 | 2013-03-28 | A kind of wear-resisting steel plate and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103194684B (en) |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882331A (en) * | 2014-02-25 | 2014-06-25 | 南通东方科技有限公司 | High-strength and high-wear-resistant supporting wheel for large type excavator |
| CN104004964A (en) * | 2014-06-13 | 2014-08-27 | 哈尔滨工业大学 | High-toughness and high-abrasion-resistance reamer tooth and heat treatment method thereof |
| CN104357747A (en) * | 2014-10-27 | 2015-02-18 | 中国科学院金属研究所 | Microalloyed manganese boron alloy steel as well as thermal treatment method and application thereof |
| CN104388821A (en) * | 2014-12-08 | 2015-03-04 | 钢铁研究总院 | TiC particle enhancement mode complex phase tissue high-ductility wear-resisting steel plate and manufacturing method thereof |
| CN104451409A (en) * | 2014-12-05 | 2015-03-25 | 武汉钢铁(集团)公司 | Low-cost HB400-grade wear-resisting steel and production method thereof |
| CN104451436A (en) * | 2014-12-08 | 2015-03-25 | 钢铁研究总院 | Bainite-martensite-austenite multi-phase wear-resistant steel plate and manufacturing method thereof |
| CN104451403A (en) * | 2014-12-05 | 2015-03-25 | 武汉钢铁(集团)公司 | Low-temperature HB450-grade duplex structure wear-resistant steel and production method thereof |
| CN104862608A (en) * | 2015-06-01 | 2015-08-26 | 金海新源电气江苏有限公司 | Supporting hanger for grooved cable bridge and preparation process of supporting hanger |
| CN105002441A (en) * | 2015-08-11 | 2015-10-28 | 内蒙古包钢钢联股份有限公司 | Steel for high-hardenability wear-resistant bucket teeth |
| CN105063497A (en) * | 2015-09-17 | 2015-11-18 | 东北大学 | High-wear-resistance high-machinability low-alloy wear-resistant steel plate and manufacturing method thereof |
| CN105132810A (en) * | 2015-09-03 | 2015-12-09 | 慈溪市龙山汽配有限公司 | Motor housing alloy and processing process thereof |
| CN106086689A (en) * | 2016-08-30 | 2016-11-09 | 南阳汉冶特钢有限公司 | A kind of high-strength abrasion-proof steel plate and production method thereof |
| CN106399839A (en) * | 2016-09-18 | 2017-02-15 | 舞阳钢铁有限责任公司 | Large-thickness, high-strength and high-tenacity NM400 steel plate and production method |
| CN106756489A (en) * | 2016-12-14 | 2017-05-31 | 武汉钢铁股份有限公司 | 450 grades of anti-crack high-strength abrasion-proof steels of Brinell hardness and its manufacture method |
| CN107370070A (en) * | 2017-07-27 | 2017-11-21 | 国网河南省电力公司内乡县供电公司 | A kind of cross-arm hanging point device |
| WO2018176908A1 (en) * | 2017-03-31 | 2018-10-04 | 华南理工大学 | Method for manufacturing thin-specification high-ti wear-resistant steel nm450 |
| CN108699652A (en) * | 2016-09-15 | 2018-10-23 | 新日铁住金株式会社 | Abrasion-resistant stee |
| CN108930001A (en) * | 2017-05-26 | 2018-12-04 | 宝山钢铁股份有限公司 | A kind of slurry dredging high hardness wear-resisting erosion steel plate and its production method |
| CN108930002A (en) * | 2017-05-26 | 2018-12-04 | 宝山钢铁股份有限公司 | Hardness 500HB slurry dredges effective erosion resistant steel plate and its production method |
| CN108950421A (en) * | 2017-05-26 | 2018-12-07 | 宝山钢铁股份有限公司 | Hardness 600HB slurry dredges effective erosion resistant steel plate and its production method |
| CN109207853A (en) * | 2018-09-30 | 2019-01-15 | 东北大学 | A kind of the martensite wear-resistant steel plate and its manufacturing method of high-wearing feature |
| CN109536842A (en) * | 2019-01-04 | 2019-03-29 | 武汉钢铁有限公司 | A kind of wear-resistant hot rolling steel strengthened by titanium carbonitride hard particles and production method |
| CN110139942A (en) * | 2016-12-22 | 2019-08-16 | 株式会社Posco | High hardness wear-resisting steel and its manufacturing method |
| CN110157983A (en) * | 2019-05-28 | 2019-08-23 | 山东钢铁股份有限公司 | A kind of uniform endogenous TiC abrasion-resistant stee of particle and preparation method thereof |
| CN111479945A (en) * | 2017-12-22 | 2020-07-31 | 株式会社Posco | Wear-resistant steel having excellent hardness and impact toughness and method for manufacturing same |
| CN111996441A (en) * | 2020-07-10 | 2020-11-27 | 江阴兴澄特种钢铁有限公司 | TiC enhanced martensite wear-resistant steel plate with high toughness and good bending performance and manufacturing method thereof |
| US11042168B2 (en) | 2015-09-24 | 2021-06-22 | Intel Corporation | Drone sourced content authoring using swarm attestation |
| CN114058945A (en) * | 2021-10-14 | 2022-02-18 | 首钢集团有限公司 | High-strength bainite wear-resistant steel plate and production method thereof |
| CN114369763A (en) * | 2022-01-13 | 2022-04-19 | 鞍钢股份有限公司 | Residual austenite toughened wear-resistant steel and manufacturing method thereof |
| CN114381672A (en) * | 2021-12-28 | 2022-04-22 | 东北大学 | Smelting and continuous casting manufacturing method of martensite high-wear-resistance steel plate |
| WO2023078299A1 (en) * | 2021-11-03 | 2023-05-11 | 宝山钢铁股份有限公司 | High-strength and high-hardness reinforced wear-resistant steel and manufacturing method therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000256784A (en) * | 1999-03-10 | 2000-09-19 | Nippon Steel Corp | Thick steel plate for high toughness and wear resistant member |
| CN102134682A (en) * | 2010-01-22 | 2011-07-27 | 宝山钢铁股份有限公司 | Wear resistant steel plate |
| CN102296245A (en) * | 2010-06-23 | 2011-12-28 | 宝山钢铁股份有限公司 | High-strength high-corrosion-resistance wear-resisting sleeve steel and manufacturing method |
| CN102560272A (en) * | 2011-11-25 | 2012-07-11 | 宝山钢铁股份有限公司 | Ultrahigh-strength abrasion-resistant steel plate and manufacturing method thereof |
| CN102676927A (en) * | 2012-06-12 | 2012-09-19 | 钢铁研究总院 | High-Ti micro-alloyed medium thickness steel plate and preparation method thereof |
-
2013
- 2013-03-28 CN CN201310105153.8A patent/CN103194684B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000256784A (en) * | 1999-03-10 | 2000-09-19 | Nippon Steel Corp | Thick steel plate for high toughness and wear resistant member |
| CN102134682A (en) * | 2010-01-22 | 2011-07-27 | 宝山钢铁股份有限公司 | Wear resistant steel plate |
| CN102296245A (en) * | 2010-06-23 | 2011-12-28 | 宝山钢铁股份有限公司 | High-strength high-corrosion-resistance wear-resisting sleeve steel and manufacturing method |
| CN102560272A (en) * | 2011-11-25 | 2012-07-11 | 宝山钢铁股份有限公司 | Ultrahigh-strength abrasion-resistant steel plate and manufacturing method thereof |
| CN102676927A (en) * | 2012-06-12 | 2012-09-19 | 钢铁研究总院 | High-Ti micro-alloyed medium thickness steel plate and preparation method thereof |
Cited By (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882331A (en) * | 2014-02-25 | 2014-06-25 | 南通东方科技有限公司 | High-strength and high-wear-resistant supporting wheel for large type excavator |
| CN104004964A (en) * | 2014-06-13 | 2014-08-27 | 哈尔滨工业大学 | High-toughness and high-abrasion-resistance reamer tooth and heat treatment method thereof |
| CN104004964B (en) * | 2014-06-13 | 2015-12-02 | 哈尔滨工业大学 | High tough high abrasion reamer tooth and heat treating method thereof |
| CN104357747A (en) * | 2014-10-27 | 2015-02-18 | 中国科学院金属研究所 | Microalloyed manganese boron alloy steel as well as thermal treatment method and application thereof |
| CN104451403A (en) * | 2014-12-05 | 2015-03-25 | 武汉钢铁(集团)公司 | Low-temperature HB450-grade duplex structure wear-resistant steel and production method thereof |
| CN104451409A (en) * | 2014-12-05 | 2015-03-25 | 武汉钢铁(集团)公司 | Low-cost HB400-grade wear-resisting steel and production method thereof |
| CN104451436A (en) * | 2014-12-08 | 2015-03-25 | 钢铁研究总院 | Bainite-martensite-austenite multi-phase wear-resistant steel plate and manufacturing method thereof |
| CN104388821A (en) * | 2014-12-08 | 2015-03-04 | 钢铁研究总院 | TiC particle enhancement mode complex phase tissue high-ductility wear-resisting steel plate and manufacturing method thereof |
| CN104862608A (en) * | 2015-06-01 | 2015-08-26 | 金海新源电气江苏有限公司 | Supporting hanger for grooved cable bridge and preparation process of supporting hanger |
| CN105002441A (en) * | 2015-08-11 | 2015-10-28 | 内蒙古包钢钢联股份有限公司 | Steel for high-hardenability wear-resistant bucket teeth |
| CN105132810A (en) * | 2015-09-03 | 2015-12-09 | 慈溪市龙山汽配有限公司 | Motor housing alloy and processing process thereof |
| CN105132810B (en) * | 2015-09-03 | 2017-04-19 | 慈溪市龙山汽配有限公司 | Motor housing alloy and processing process thereof |
| CN105063497B (en) * | 2015-09-17 | 2017-10-17 | 东北大学 | A kind of high-wear resistance easy processing low alloy wear resistance steel plate and its manufacture method |
| CN105063497A (en) * | 2015-09-17 | 2015-11-18 | 东北大学 | High-wear-resistance high-machinability low-alloy wear-resistant steel plate and manufacturing method thereof |
| US11042168B2 (en) | 2015-09-24 | 2021-06-22 | Intel Corporation | Drone sourced content authoring using swarm attestation |
| CN106086689A (en) * | 2016-08-30 | 2016-11-09 | 南阳汉冶特钢有限公司 | A kind of high-strength abrasion-proof steel plate and production method thereof |
| CN108699652A (en) * | 2016-09-15 | 2018-10-23 | 新日铁住金株式会社 | Abrasion-resistant stee |
| CN106399839A (en) * | 2016-09-18 | 2017-02-15 | 舞阳钢铁有限责任公司 | Large-thickness, high-strength and high-tenacity NM400 steel plate and production method |
| CN106756489A (en) * | 2016-12-14 | 2017-05-31 | 武汉钢铁股份有限公司 | 450 grades of anti-crack high-strength abrasion-proof steels of Brinell hardness and its manufacture method |
| US11332802B2 (en) | 2016-12-22 | 2022-05-17 | Posco | High-hardness wear-resistant steel and method for manufacturing same |
| CN110139942A (en) * | 2016-12-22 | 2019-08-16 | 株式会社Posco | High hardness wear-resisting steel and its manufacturing method |
| US11649516B2 (en) | 2017-03-31 | 2023-05-16 | South China University Of Technology | Method for manufacturing thin-specification high-Ti wear-resistant steel NM450 |
| WO2018176908A1 (en) * | 2017-03-31 | 2018-10-04 | 华南理工大学 | Method for manufacturing thin-specification high-ti wear-resistant steel nm450 |
| CN108930001A (en) * | 2017-05-26 | 2018-12-04 | 宝山钢铁股份有限公司 | A kind of slurry dredging high hardness wear-resisting erosion steel plate and its production method |
| CN108950421A (en) * | 2017-05-26 | 2018-12-07 | 宝山钢铁股份有限公司 | Hardness 600HB slurry dredges effective erosion resistant steel plate and its production method |
| CN108930002A (en) * | 2017-05-26 | 2018-12-04 | 宝山钢铁股份有限公司 | Hardness 500HB slurry dredges effective erosion resistant steel plate and its production method |
| CN108950421B (en) * | 2017-05-26 | 2020-08-25 | 宝山钢铁股份有限公司 | Abrasion-resistant steel plate for slurry dredging pipe with hardness of 600HB and production method thereof |
| CN108930001B (en) * | 2017-05-26 | 2020-08-25 | 宝山钢铁股份有限公司 | High-hardness abrasion-resistant steel plate for slurry dredging and production method thereof |
| CN107370070B (en) * | 2017-07-27 | 2024-02-13 | 国网河南省电力公司内乡县供电公司 | Cross arm hanging point device |
| CN107370070A (en) * | 2017-07-27 | 2017-11-21 | 国网河南省电力公司内乡县供电公司 | A kind of cross-arm hanging point device |
| CN111479945B (en) * | 2017-12-22 | 2022-06-24 | 株式会社Posco | Wear-resistant steel having excellent hardness and impact toughness and method for manufacturing same |
| CN111479945A (en) * | 2017-12-22 | 2020-07-31 | 株式会社Posco | Wear-resistant steel having excellent hardness and impact toughness and method for manufacturing same |
| US11371125B2 (en) | 2017-12-22 | 2022-06-28 | Posco | Wear-resistant steel having excellent hardness and impact toughness, and method for producing same |
| CN109207853A (en) * | 2018-09-30 | 2019-01-15 | 东北大学 | A kind of the martensite wear-resistant steel plate and its manufacturing method of high-wearing feature |
| CN109536842A (en) * | 2019-01-04 | 2019-03-29 | 武汉钢铁有限公司 | A kind of wear-resistant hot rolling steel strengthened by titanium carbonitride hard particles and production method |
| CN110157983A (en) * | 2019-05-28 | 2019-08-23 | 山东钢铁股份有限公司 | A kind of uniform endogenous TiC abrasion-resistant stee of particle and preparation method thereof |
| CN111996441A (en) * | 2020-07-10 | 2020-11-27 | 江阴兴澄特种钢铁有限公司 | TiC enhanced martensite wear-resistant steel plate with high toughness and good bending performance and manufacturing method thereof |
| CN114058945A (en) * | 2021-10-14 | 2022-02-18 | 首钢集团有限公司 | High-strength bainite wear-resistant steel plate and production method thereof |
| CN114058945B (en) * | 2021-10-14 | 2023-01-20 | 首钢集团有限公司 | High-strength bainite wear-resistant steel plate and production method thereof |
| WO2023078299A1 (en) * | 2021-11-03 | 2023-05-11 | 宝山钢铁股份有限公司 | High-strength and high-hardness reinforced wear-resistant steel and manufacturing method therefor |
| CN114381672A (en) * | 2021-12-28 | 2022-04-22 | 东北大学 | Smelting and continuous casting manufacturing method of martensite high-wear-resistance steel plate |
| CN114369763A (en) * | 2022-01-13 | 2022-04-19 | 鞍钢股份有限公司 | Residual austenite toughened wear-resistant steel and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103194684B (en) | 2016-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103194684B (en) | A kind of wear-resisting steel plate and manufacture method thereof | |
| CN103205627B (en) | A kind of Low-alloy high-performance wear-resistant steel plate and manufacture method thereof | |
| CN103205634B (en) | A kind of low-alloy high hardness wear-resisting steel plate and manufacture method thereof | |
| CN103146997B (en) | A kind of low-alloy high-flexibility wear-resistant steel plate and manufacture method thereof | |
| CN101775545B (en) | Low-alloy high-strength high-toughness wear-resistant steel plate and manufacturing method thereof | |
| CN101775539B (en) | High-flexibility wear-resistant steel plate and manufacturing method thereof | |
| CN102747280B (en) | Wear resistant steel plate with high intensity and high toughness and production method thereof | |
| CN102747282B (en) | High-hardness high-tenacity wear-resistant steel plate and production method thereof | |
| CN102676909B (en) | Method for manufacturing high-chrome cast iron grinding balls | |
| CN102392186B (en) | Manufacturing method of HB500 grade low-manganese wear-resistant steel plate | |
| CN103194674B (en) | A kind of HB360 grade wear-resisting steel plate and manufacture method thereof | |
| CN104264072B (en) | A kind of 600HB grade wear-resisting steel plate and preparation method thereof | |
| CN105002439B (en) | A kind of grade wear-resisting steel of Brinell hardness 400 and its manufacture method | |
| CN105369130B (en) | Multielement alloying high-strength high-abrasion-resistance steel and manufacturing method of hot-rolled plate | |
| CN101688283A (en) | Abrasion-resistant steel sheet having excellent processability, and method for production thereof | |
| CN103627960A (en) | Wear-resistant cast steel | |
| CN102041458A (en) | Low-alloy abrasion-resistant steel and manufacturing method thereof | |
| CN104388821A (en) | TiC particle enhancement mode complex phase tissue high-ductility wear-resisting steel plate and manufacturing method thereof | |
| CN105018835A (en) | Medium-high carbon hot rolled strip steel with excellent fine blanking performance and production method | |
| CN105002430A (en) | HB360 level complex-phase structure wear-resisting steel plate and production method thereof | |
| CN105039861A (en) | Medium-manganese and boracic low-alloy abrasion-resistant steel plate and preparing method thereof | |
| CN101775543B (en) | HB400-grade wear-resisting steel plate and production method thereof | |
| CN104451436A (en) | Bainite-martensite-austenite multi-phase wear-resistant steel plate and manufacturing method thereof | |
| CN105296866B (en) | A kind of blade steel, production method and blade processing method | |
| CN109321828A (en) | A kind of 1600MPa grades of cold rolling martensite steel and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |